Answer: The correct answer is longitudinal wave.
Step-by-step explanation:
Longitudinal wave is a wave in which the particles of the medium vibrate parallel to the direction of the wave motion. For example, sound wave.
It consists of compression and the rarefaction.
Longitudinal wave needs medium to travel. It can travel in solid, liquid and gas. It travels faster in the solid as compared to the liquid and gas.
Therefore, when sound waves travel through a medium, the particles of the medium move parallel to the wave motion. This type of the wave displays the behavior of the longitudinal wave.